US6641620B1 - Disperse dye mixtures - Google Patents

Disperse dye mixtures Download PDF

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US6641620B1
US6641620B1 US09/806,501 US80650101A US6641620B1 US 6641620 B1 US6641620 B1 US 6641620B1 US 80650101 A US80650101 A US 80650101A US 6641620 B1 US6641620 B1 US 6641620B1
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dye
formula
dyes
alkyl
parts
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Alan Thomas Leaver
David Brierley
James Franklin Bullock
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Dystar Colours Distribution GmbH
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BASF SE
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/0033—Blends of pigments; Mixtured crystals; Solid solutions
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/16—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using dispersed, e.g. acetate, dyestuffs
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/16—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using dispersed, e.g. acetate, dyestuffs
    • D06P1/20—Anthraquinone dyes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/34—Material containing ester groups
    • D06P3/52—Polyesters
    • D06P3/54—Polyesters using dispersed dyestuffs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S8/00—Bleaching and dyeing; fluid treatment and chemical modification of textiles and fibers
    • Y10S8/92—Synthetic fiber dyeing
    • Y10S8/922—Polyester fiber

Definitions

  • This invention relates to mixtures of disperse dyes, compositions comprising dispersions of such mixtures and processes for the colouration of synthetic materials with such mixtures. More particularly, the invention relates to mixtures of the dyes of the so-called pyrroline type with those of the so-called anthraquinone type.
  • Dyes of the pyrroline type are disclosed, for example, in U.S. Pat. No. 3,013,013, U.S. Pat. No. 3,013,018, GB-A-2191498, EP-A-0327077, EP-A-0511625 and WO-A-94010248.
  • WO-A-94010248 discloses dyes of the pyrroline type having the formula (1)
  • D is a group of Formula (2):
  • R 1 is alkyl, cycloalkyl, aryl, alkenyl or aralkyl each of which may be optionally substituted;
  • R 2 is optionally substituted C 7-20 -alkyl
  • R 1 and R 2 together with the nitrogen atom to which they are attached form a pyrrolidino or piperidino ring;
  • R 3 is alkyl, alkenyl or aralkyl each of which may be optionally substituted, —SO 2 alkyl, —SO 2 aryl, or —COR in which R is —H or alkyl, phenyl, cycloalkyl or aralkyl each of which may be optionally substituted, or —H; and
  • R 4 is an electron withdrawing group
  • R 6 is optionally substituted C 1-6 -alkyl
  • R 1 and R 6 together with the nitrogen atom to which they are attached form a pyrrolidino or piperidino ring;
  • R 7 , R 8 , R 9 and R 10 each independently is alkyl, cycloaklyl, aryl, alkenyl or aralkyl, each of which may be optionally substituted or —H;
  • W is oxygen or sulphur
  • Z is a direct link or N—R 11 in which R 11 is —H or optionally substituted alkyl or aryl;
  • Ring A is unsubstituted apart from the —NR 1 R 2 group or is substituted by from 1 to 4 further groups;
  • Ring B is unsubstituted or substituted by from 1 to 3 groups; except for 3-(4-(N,N-di-n-octylamino)phenyl)-4-cyano-5-dicyano methylidene-2-oxo-2,5-dihydropyrrole provided that:
  • R 1 and R 6 are different and R 1 is not —C 2 H 5 , —C 3 H 7 or —C 4 H 9 when R 6 is —C 2 H 4 phenyl, —C 3 H 6 phenyl and ethyl substituted by —OH, —CN, —OCH 3 , —OC 2 H 4 OC 2 H 5 , —NHCOCH 3 -Ophenyl and —NHSO 2 CH 3 ; or
  • R 1 and R 6 are branched chain alkyl.
  • dyes of the pyrroline type are, for example, dyes of the formula:
  • R A is H (Kayalon Polyester Brilliant Blue F2B-S); or CH 2 CH ⁇ CH 2 (Kayalon Polyester Blue-Green FG-S); and dyes of the formula
  • X A is C 4 H 9 and Y A is CH(CH 3 )C 5 H 11 .
  • Dyes of the anthraquinone type are also well known.
  • dyes and mixtures of dyes each within the formula given below are commercially available as C.I. Disperse Blue 60 type dyes:
  • R B is (CH 2 ), —O—R B 1 , in which n is 1-6 and R B 1 , is straight or branched alkyl or alkoxy (and examples of R B are C 2 H 4 OCH 3 , C 3 H 6 OCH 3 , C 3 H 6 OC 2 H 5 and C 3 H 6 OC 2 H 4 OCH 3 ) and Z B is O or NH.
  • dyes of the anthraquinone type alone are dyed on polyester, they often exhibit very good light fastness, but with poor build up. Moreover, they are tinctorially very weak and therefore expensive for colouring polyester. Moreover, high strength liquid or grain formulations cannot be achieved. In addition, although good build up can be achieved, the shade becomes duller as the dye builds up.
  • R 1 is H, C 1-20 alkyl or C 2-20 alkenyl; and D is aryl; and
  • R B is (CH 2 ) n OR B 1 ;
  • R B 1 is a straight or branched chain C 1-6 alkyl or C 1-6 alkoxy-C 1-6 alkyl;
  • n 1-6;
  • Z B is O or NH.
  • Component (A) preferably comprises a dye of the formula (I) wherein D is a group of the formula (a)
  • each of R 2 and R 3 independently is an alkyl, cycloalkyl, aryl, alkenyl or aralkyl group.
  • the alkyl group represented by any of R 1 -R 3 is preferably a C 1-20 -alkyl, more preferably a C 1-12 -alkyl and especially a C 1-8 -alkyl group.
  • the cycloalkyl group represented by R 2 or R 3 is preferably a C 4-8 -cycloalkyl and more preferably a cyclohexyl group.
  • the aryl group represented by R 2 or R 3 is preferably phenyl.
  • the alkenyl group represented by any of R 1 -R 3 is preferably a C 2-10 -alkenyl, more preferably a C 2-6 -alkenyl and especially a C 2-3 -alkenyl group, such as allyl.
  • the aralkyl group represented by any of R 1 -R 3 is preferably a phenyl-C 1-6 -alkyl, more preferably a phenyl-C 1-3 -alkyl, especially phenylethyl or 3-phenylpropyl.
  • the alkyl group represented by R 3 is more preferably a C 7-15 -alkyl, still more preferably a C 7-12 -alkyl and especially a C 7-9 -alkyl group.
  • the alkyl group represented by R 1 is more preferably a C 1-6 -alkyl and still more preferably C 1-8 -alkyl group.
  • R 1 is especially preferably —H, C 1-4 -alkyl or C 2-3 alkenyl, more preferably —H or C 1-4 -alkyl and especially —H.
  • D is preferably a group of Formula (a).
  • R 1 -R 3 may be straight or branched chain alkyl groups.
  • R 2 is preferably C 1-12 -alkyl more preferably C 1-8 -alkyl especially unsubstituted C 1-8 alkyl.
  • R 3 may be C 7-12 -alkyl and preferably C 7-9 -alkyl, especially unsubstituted C 7-9 -alkyl or may be unsubstituted C 1-6 -alkyl.
  • D is a group of Formula (a) it is preferred that one or both of R 2 and R 3 is branched, more preferably branched at an ⁇ - or ⁇ -, i.e. 1- or 2-, position. It is preferred that R 2 and R 3 are different. It is also preferred that ring A is unsubstituted apart from the NR 2 R 3 group.
  • a preferred sub-group of dyes of Formula (I) is that in which D is a group of Formula (a):
  • R 1 is alkyl or —H
  • R 2 is alkyl
  • R 3 is C 7-20 -alkyl
  • Ring A is unsubstituted apart from the —NR 2 R 3 group.
  • Another preferred sub-group of dyes of Formula (I) is that in which D is a group of the Formula (a);
  • R 1 is —H or alkyl
  • R 2 is unsubstituted C 1-8 -alkyl
  • Ring A is unsubstituted apart from the —NR 2 R 3 group;
  • R 2 and R 3 are different or at least one of R 2 and R 3 is a branched chain alkyl.
  • R 1 is —H
  • R 2 is unsubstituted C 1-8 alkyl
  • R 3 is unsubstituted C 7-9 alkyl
  • Ring A is unsubstituted apart from the —NR 2 R 3 group.
  • a further especially preferred sub-group of dyes of Formula (I) is that in which D is a group of Formula (a);
  • R 1 is —H
  • R 2 is n-propyl or n-butyl
  • R 3 is 1-methylhexyl or 2-ethylhexyl
  • Ring A is unsubstituted apart from the —NR 2 R 3 group.
  • dyes of Formula (I) may exist in a tautomeric form represented by Formula (IA):
  • Ring A is as hereinbefore defined, firstly with a compound of Formula R 2 X in which R 2 is as hereinbefore defined and X is a halogen such as —Cl, —Br or —I or other leaving group, such as a tosylate, mesylate or alkylsulphonate in the presence of a base such as an alkali metal carbonate or alkaline earth metal carbonate such as K 2 CO 3 or CaCO 3 and secondly with a compound of formula, R 3 X in which R 3 and X are as hereinbefore defined in the presence of a base as above to form an aromatic amine of Formula (IV);
  • the aromatic amine of the Formula (IV) may be prepared by reductive alkylation of the aniline of Formula (III) with an appropriate ketone or aldehyde.
  • the reductive alkylation may be performed in an inert liquid medium such as an alcohol or ester optionally in the presence of an acid such as an aliphatic carboxylic acid, for example, acetic and propionic acids and aromatic sulphonic acid e.g. 4-toluenesulphonic acid using a metal or supported metal catalyst such as palladium or platinum on carbon and hydrogen, optionally at elevated temperature and pressure.
  • reducing agents such as sodium borohydride may be used.
  • a second alkyl group may be introduced as described above.
  • R 1 is as hereinbefore defined and X is preferably a halogen such as —Cl or —Br to form a compound of Formula (I).
  • the reaction may be performed in a liquid medium such as N,N-dimethylformamide, N,N-dimethylacetamide, dimethylsulphoxide, sulpholane, N-methylpyrrolidone, acetonitrile, toluene or tetrahydrofuran or any mixture thereof and at a temperature from ⁇ 20° C. to 50° C.
  • the product may be isolated by any convenient means such as pouring the reaction mixture into a mixture of ice and water and recovering the precipitated product by filtration.
  • the product may be purified by any convenient means such as trituration or recrystallisation from organic liquids particularly alkanols such as methanol, ethanol and esters such as ethylacetate or mixtures thereof.
  • the 3-halo-2-oxopyrrole of Formula (V) may be prepared by halogenation of a compound which may be represented by Formulae (VI), (VI 1 ) and (VI 2 )
  • a halogenating agent such as phosphorus oxychloride, phosphorus trichloride, phosphorus pentachloride, thionyl chloride or phosgene at a temperature of from ⁇ 20° C. to 50° C. in a liquid medium such as N,N-dimethylformamide, N,N-diethylacetamide, dimethylsulphoxide, sulpholane, N-methylpyrrolidone, acetonitrile or tetrahydrofuran.
  • a liquid medium such as N,N-dimethylformamide, N,N-diethylacetamide, dimethylsulphoxide, sulpholane, N-methylpyrrolidone, acetonitrile or tetrahydrofuran.
  • a compound of Formula (IV) may be reacted directly with the compound represented by Formulae (VI), (VI 1 ) or (VI 2 ) in a liquid medium such as toluene in the presence of a halogenating agent such as phosphorus oxychloride.
  • the compounds represented by Formulae (VI) or (VI 1 ) my be prepared by reaction of diethyloxalate with a compound for Formula (VII);
  • a base such as an alkali metal alkoxide preferably a sodium or potassium C 1-6 -alkoxide and especially sodium or potassium methoxide, ethoxide, n- or iso-propoxide, n-, iso- or tertiary-butoxide in a liquid medium, preferably an alkanol such as methanol, ethanol, n- or iso-propanol or n-, iso- or tertiary-butanol, at a temperature of from 10° C. to 60° C.
  • the product may be isolated by cooling the reaction mixture and collection by filtration.
  • the compound of Formula (VII) may be prepared by reaction of malononitrile with a compound of Formula (VIII):
  • the product may be isolated by filtration.
  • a dye of Formula (I) in which R 1 is other than —H may be prepared by reaction of the corresponding dye of Formula (I) in which R 1 is —H in a liquid medium, preferably an amide such as dimethylformamide or an ether such as tetrahydrofuran or diethylether in the presence of a base, preferably an alkali metal carbonate such as potassium carbonate or an alkali metal hydride such as sodium hydride at a temperature of 0° C. to 120° C. with an appropriate alkylating agent.
  • R 1 is alkyl an appropriate alkylating agent is an alkyl halide, preferably an alkyl iodide, bromide or chloride.
  • R 1 is alkenyl an appropriate alkylating agent is an alkenyl halide, preferably an alkenyl bromide.
  • component (A) may be a mixture of two or more dyes of Formula (I) wherein to R 3 inclusive, D and Ring A are as hereinbefore defined.
  • component (B) which preferably comprises at least one anthraquinone type dye of the formula (II), wherein Z B is O or NH, more preferably O, n is 1, 2 or 3, more, preferably 2 or 3 and R B 1 is methyl, ethyl or methoxyethyl.
  • component (B) is an anthraquinone dye of the formula (II) wherein Z B is O and R B is C 2 H 4 OCH 3 , C 3 H 6 OCH 3 , C 3 H 6 OC 2 H 5 or C 3 H 6 OC 2 H 4 OCH 3 or a mixture of any two or more such anthraquinone type dyes, especially a mixture of any two, or all three, of the dyes (B 1 ), (B 2 ) and B 3 ), each of the Formula (II) in which Z B is O,
  • dye (B 1 ) is a dye wherein R B is C 3 H 6 OCH 3 ;
  • dye (B 2 ) is a dye wherein R B is C 3 H 6 OC 2 H 4 OCH 3 ;
  • dye (B 3 ) is a dye wherein R B is C 3 H 6 OC 2 H 5 .
  • component (B) is a mixture of dyes (B 1 ) and (B 2 )
  • the ratio by weight of dye (B 1 ): dye (B 2 ) is preferably from 30:70 to 60:90 inclusive, more preferably from 45:55 to 48:52.
  • the dyes of the formula (II) wherein R B is hydrogen may be prepared, for example, by reaction of 2,3-dicyano-1,4-diamino-anthraquinone with sulphuric acid. This dye may then be reacted with a primary amine R B X NH 2 to obtain a dye of the formula (II) wherein R B X is any of the groups of R B other than hydrogen. Alternatively, certain of such dyes of the formula (II) may be prepared from the 2,3-dicyano-1,4-diaminoanthraquinone by reaction with each of sulphuric acid and a secondary alcohol to provide a dye wherein R B X is secondary alkyl.
  • the ratio by weight, of component (A) component (B) is from 3:97 to 60:40 inclusive, more preferably from 8:92 to 40:60 inclusive, especially from 10:90 to 30:70 inclusive.
  • component (A) is
  • component (B) is a mixture of anthraquinone-type dyes (B 1 ) and (B 2 ), each of the formula (II), which dye (B 1 ) is a dye wherein Z B is O and R B is C 3 H 6 OCH 3 and which dye (B 2 ) is a dye wherein Z B is O and R B is C 3 H 6 OCH 2 CH 2 OCH 3 , wherein the ratio, by weight, of the dye (B 1 ): dye (B 2 ) is preferably from 45:55 to 48:52.
  • the ratio, by weight, of component A(1) component (B) is preferably from 5:90 to 30:70 inclusive.
  • a mixture embodying the invention of at least one dye of formula (I) (component A) and at least one dye of the formula (II) (component B) may additionally comprise at least one other dye (component C), especially a yellow, orange, red or brown dye capable of producing a navy or black shade.
  • Mixtures embodying the invention can be prepared by a number of methods including
  • the dyes are dissolved in a hot solvent, for example, by placing the dyes in a suitable solvent and heating up to the reflux temperature of the solvent until the dyes are dissolved, thereafter filtering to provide a solution, and then allowing the solution to cool and crystals to form.
  • suitable solvents for this process are organic solvents such as aromatic hydrocarbons, chlorinated hydrocarbons, aliphatic hydrocarbons, alicyclic hydrocarbons, alcohols, amides, sulphoxides, esters, ketones and ethers.
  • organic solvents are toluene, ethyl cellosolve, acetone, chlorobenzene, pyridine, dimethyl formamide, diemthylsulphoxide, ethyl acetate, benzene, tetrahydrofuran and cyclohexane.
  • each dye is milled separately and then mixed in the required ratio before spray drying.
  • Each dye is spray dried separately and then mixed in the required ratio by a dry blending process.
  • the mixtures give especially bright shades which are maintained as the dyes build up. Dyeings with the mixtures have good light fastness.
  • the mixtures have high colour strength and can be readily and cost-effectively formulated.
  • Mixtures embodying the invention provide especially useful disperse dyes valuable for colouring synthetic textile materials and fiber blends thereof by exhaust dyeing, padding or printing, and may be formed into dispersions for this purpose. They may also be used in, for example, ink jet printing of textiles and non-textiles, dye diffusion, thermal transfer printing and in the colouration of plastics.
  • the invention provides a composition comprising at least the dye mixture and a dispersing agent, surfactant or wetting agent, suitable for providing such a dispersion and also a process for colouring a synthetic textile material or fibre blend thereof which comprises applying to the synthetic textile material or fibre blend a mixture comprising at least one dye of the formula (I) and at least one dye of the formula (II).
  • the synthetic textile material may be selected from aromatic polyester, especially polyethylene terephthalate, polyamide, especially polyhexamethylene adipamide, secondary cellulose acetate, cellulose triacetate, and natural textile materials, especially cellulosic materials and wool.
  • An especially preferred textile material is an aromatic polyester or fibre blend thereof with fibres of any of the above mentioned textile materials.
  • Especially preferred fibre blends include those of polyester-cellulose, such as polyester-cotton, and polyester-wool.
  • the textile materials or blends thereof may be in the form of filaments, loose fibres, yarn or woven or knitted fabrics.
  • mixtures of dyes of formulae [I] and [II] optionally in conjunction with other disperse dyes may be applied to the synthetic textile materials or fibre blends by processes which are conventionally employed in applying disperse dyes to such materials and fibre blends.
  • Suitable process conditions may be selected from the following
  • carrier dyeing at a pH of from 4 to 6.5, at a temperature of from 95° C. to 100° C. using a carrier such as methylnaphthalene, diphenylamine or 2-phenylphenol, sequestrants optionally being added; and
  • the dye mixture may be applied as a dispersion comprising from 0.001% to 6, preferably from 0.005 to 4%, of the dye mixture in an aqueous medium.
  • a particular aspect of the invention provides a composition
  • a composition comprising a mixture of dyes (I) and (II), optionally at least one other disperse dye and, additionally, optionally at least one further ingredient conventionally used in colouring applications such as a dispersing agent, surfactant or wetting agent.
  • the composition typically comprises from 1% to 65%, preferably 10 to 60%, more preferably 20 to 55%, of the total dye mixture in a liquid, preferably an aqueous, or solid medium.
  • Liquid compositions are preferably adjusted to pH 2 to 7, more preferably pH 4 to 6.
  • dispersing agent examples include lignosulphonates, naphthalene sulphonic acid/formaldehyde condensates and phenol/cresol/sulphanilic acid/formaldehyde condensates
  • typical examples of wetting agent are alkyl aryl ethoxylates which may be sulphonated or phosphated
  • typical examples of other ingredients which may be present are inorganic salts, de-foamers such as mineral oil or nonanol, organic liquids and buffers.
  • Dispersing agents may be present at from 10% to 200% on the weight of the dye mixtures.
  • Wetting agents may be used at from 0% to 20% on the weight of the dye mixtures.
  • compositions may be prepared by bead milling the dye mixture with glass beads or sand in an aqueous medium.
  • the compositions may have further additions of dispersing agents, fillers and other surfacants and may be dried, by a technique such as spray drying, to give a solid composition comprising from 5% to 65% of dyestuff.
  • the dye mixtures may be applied to synthetic textile materials and fibre blends by ink-jet printing, the substrates optionally having been pre-treated to aid printing.
  • the application medium may comprise water and a water-soluble organic solvent, preferably in a weight ratio of 1:99 to 99:1, more preferably 1:95 to 50:50 and especially in the range 10:90 to 40:60.
  • the water-soluble organic solvent preferably comprises a C 1 -C 4 -alkanol, especially methanol or ethanol, a ketone, especially acetone or methyl ethyl ketone, 2-pyrrolidone or N-methylpyrrolidone, a glycol, especially ethylene glycol, propylene glycol, trimethylene glycol, butane-2,3-diol, thiodiglycol or diethylene glycol, a glycol ether, especially ethylene glycol monomethyl ether, propylene glycol monomethyl ether or diethylene glycol monomethyl ether, urea, a sulphone, especially bis-(2-hydroxyethyl) sulphone or mixtures thereof.
  • a C 1 -C 4 -alkanol especially methanol or ethanol, a ketone, especially acetone or methyl ethyl ketone, 2-pyrrolidone or N-methylpyrrolidone
  • a glycol especially ethylene glyco
  • the dye mixtures may also be applied to textile materials using supercritical carbon dioxide, in which case the dye formulating agents may optionally be omitted.
  • N-(1-methylhexyl)aniline was prepared as follows: To an ice cooled, stirred mixture of aniline (28 parts), heptan-2-one (69 parts) and propionic acid (9 parts) was added sodium borohydride (9.8 parts) portionwise at such a rate as to keep the temperature less than 5° C. The reaction mixture was allowed to warm up to room temperature and stirred overnight. The reaction mixture was then poured into an ice water mixture, and extracted with ethyl acetate. The organic phase was washed with water, 2% hydrochloric acid and water. The dried organic phase was evaporated to leave N-(1-methylhexyl)aniline (53.5 parts, 93%).
  • N-butyl-N-(1-methylhexyl)aniline was prepared as follows:
  • reaction mixture was poured into a stirred mixture of ice and water (400 parts) and acetone (400 parts) was added before filtering off a solid.
  • the solid was washed repeatedly with warm water (40° C.) and then dried at 50° C. to yield 3-(4-(N-butyl-N-(1-methylhexyl)amino)phenyl)-4-cyano-5-dicyanomethylidene-2-oxo-2,5-dihydropyrrole (26.8 parts, 65%).
  • a small sample of this material was slurried in boiling methanol, collected by filtration, washed with methanol and dried at 50° C.
  • a dye (2) obtained commercially as C.I. Disperse Blue 60 is a mixture of 13.5 parts by weight Palanil Blue BG-ME and 25 parts by weight Palanil Blue BG-M, which mixture is made up to 100 parts by weight with dispersing agents.
  • the dyes have the following respective structures.
  • a dye (1) synthesized as described in Example 1, contained less than 10% by weight of the corresponding N,N-dibutyl compound as impurity.
  • a press paste of this dye is bead milled as a 40% aqueous slurry with 20 parts of a high temperature stable dispersing agent until the dye particle size (mean diameter) is in the range of 0.1-5 microns.
  • a dye (2), as described in Example 2, is made up into a press paste, which is also bead milled in the same manner as a dye (1).
  • each of the milled pastes of dyes (1) and (2) are combined with one another and the dispersion was standardized to a liquid brand containing 20.5% of the mixture, by the addition of 6.5 parts of a humectant and water (to 100 parts).
  • This is especially suitable for use in the direct printing and continuous dyeing of polyester and polyester/cellulose blends and can also be used for exhaust dyeing.
  • the same dispersion is standardised to a solid brand, containing 12 parts of dye (1), 29 parts of dye (2) and 59 parts of dispersing agent, by the addition of 39 parts of a temperature stable dispersing agent and drying to either a grain or powder form in a spray dryer.
  • the product is especially suitable for the exhaust dyeing of polyester, polyester/cellulose and polyester/wool blends and can also be used for continuous dyeing and direct printing.
  • Example 3 is repeated except that 100 parts of the spray dried grains contain 6 parts of dye(1) and 33 parts of dye (2).
  • a dyebath for the exhaust dyeing of polyester in piece form is prepared by adding 3 mls of an aqueous dispersion of the solid composition of Examples 3 and 4 respectively (1 g dye in 100 ml water at 40-50° C.) to 55.8 ml of de-ionised water and 1.2 ml of buffer solution. To this dyebath is added a 5 g piece of polyester and the whole is held for 45 minutes at 130° C. in a Werner Mathis Labomat high temperature dyeing machine. After rinsing with water and a reduction clearing treatment, the material is dyed a bright greenish-blue shade with excellent build up and light fastness.

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  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)
  • Paints Or Removers (AREA)
  • Cosmetics (AREA)
  • Treatment Of Fiber Materials (AREA)
US09/806,501 1998-10-13 1999-10-06 Disperse dye mixtures Expired - Fee Related US6641620B1 (en)

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KR20230157040A (ko) * 2022-05-09 2023-11-16 충남대학교산학협력단 반응성 분산 염료 조성물 및 이를 이용한 초임계 유체 염색 방법

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GB9826659D0 (en) * 1998-12-03 1999-01-27 Basf Ag Disperse dye mixtures
GB0217487D0 (en) 2002-07-29 2002-09-04 Dystar Textilfarben Gmbh & Co Non-azo disperse dye mixtures
JP2005105226A (ja) * 2003-10-02 2005-04-21 Konica Minolta Holdings Inc インクジェット用分散染料インクとそれを用いたインクジェット捺染方法
JP5686704B2 (ja) * 2011-09-03 2015-03-18 日本化薬株式会社 分散染料混合物、それを含有する染料組成物及びそれを用いた染色法
CN115433096B (zh) * 2022-09-16 2024-02-06 浙江省农业科学院 一种抗臭氧剂的制备方法

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JPS61207679A (ja) 1985-03-07 1986-09-16 住友化学工業株式会社 ポリエステル繊維材料の染色法
EP0511625A1 (en) 1991-04-30 1992-11-04 Eastman Kodak Company Mixture of yellow and cyan dyes to form a green hue for color filter array element
EP0591736A2 (de) 1992-09-29 1994-04-13 BASF Aktiengesellschaft Verwendung von Pyridinfarbstoffen im textilen Bereich, Farbstoffmischungen, enthaltend Pyridinfarbstoffe, sowie Triazolopyridinfarbstoffe mit einem Thienylrest
WO1994010248A1 (en) 1992-11-05 1994-05-11 Zeneca Limited Dyes
JPH06329927A (ja) * 1993-05-17 1994-11-29 Nippon Kayaku Co Ltd インクジェットプリント用インク組成物及びこれを用いる染色法
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JPS61207679A (ja) 1985-03-07 1986-09-16 住友化学工業株式会社 ポリエステル繊維材料の染色法
EP0511625A1 (en) 1991-04-30 1992-11-04 Eastman Kodak Company Mixture of yellow and cyan dyes to form a green hue for color filter array element
EP0591736A2 (de) 1992-09-29 1994-04-13 BASF Aktiengesellschaft Verwendung von Pyridinfarbstoffen im textilen Bereich, Farbstoffmischungen, enthaltend Pyridinfarbstoffe, sowie Triazolopyridinfarbstoffe mit einem Thienylrest
WO1994010248A1 (en) 1992-11-05 1994-05-11 Zeneca Limited Dyes
US5660598A (en) * 1992-11-05 1997-08-26 Zeneca Limited Dyes
JPH06329927A (ja) * 1993-05-17 1994-11-29 Nippon Kayaku Co Ltd インクジェットプリント用インク組成物及びこれを用いる染色法
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Publication number Priority date Publication date Assignee Title
KR20230157040A (ko) * 2022-05-09 2023-11-16 충남대학교산학협력단 반응성 분산 염료 조성물 및 이를 이용한 초임계 유체 염색 방법
WO2023219195A1 (ko) * 2022-05-09 2023-11-16 충남대학교산학협력단 반응성 분산 염료 조성물 및 이를 이용한 초임계 유체 염색 방법

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WO2000022048A1 (en) 2000-04-20
EP1121393A1 (en) 2001-08-08
KR20020021771A (ko) 2002-03-22
DE69902798T2 (de) 2003-04-30
TR200101037T2 (tr) 2001-11-21
JP2002527562A (ja) 2002-08-27
TW455615B (en) 2001-09-21
PT1121393E (pt) 2002-12-31
AU6214699A (en) 2000-05-01
BR9914565B1 (pt) 2009-05-05
CN1323332A (zh) 2001-11-21
KR100584102B1 (ko) 2006-05-30
EP1121393B1 (en) 2002-09-04
GB9822336D0 (en) 1998-12-09
CN1145680C (zh) 2004-04-14
ID29041A (id) 2001-07-26
DE69902798D1 (de) 2002-10-10
BR9914565A (pt) 2001-07-03

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